Luke Whitelock, on the reserves bench, is likely to wear the No8 jersey, with Jordan Taufua, the Canterbury loose forward who impressed during his time on loan with Tasman, probably getting a bench role. Whitelock, 22, invited to train with the All Blacks last year, is a no-mistakes, technically excellent player, but Taufua is probably a more dynamic ball-carrier.
If the Crusaders have to quickly get to grips with Read's absence against the Stormers, who last weekend halted the Brumbies' winning start to the season, they have had time to get used to the idea of not having Dan Carter available, but whether they have the quality to cope without him remains to be seen.
Much rests on Tom Taylor's knee injury, suffered in their defeat by the Hurricanes in Wellington - and as much for his goalkicking as anything else.
Taylor, who kicked at about 90 per cent last season, will probably miss the Stormers match at Newlands on Sunday morning (NZT), leaving Tyler Bleyendaal as the only specialist No10 in the squad. The issue isn't necessarily whether the former New Zealand under-20s captain can cope at this level - although many of his attempted clearing kicks are frequently charged down, which can put his team under pressure - but whether his goalkicking bears scrutiny at a place where every point will be crucial.
The other question is whether Blackadder tinkers with his free-running game plan which sees his team rarely resort to kicking for territory.
The Chiefs' display against the Highlanders in Hamilton highlighted how much of an impact travel can have on energy levels - only their determination and defensive ability allowed them to win that match.
Running everything in their victories over the Bulls and Kings paid big dividends for the Crusaders, but the Stormers are an excellent defensive side, and with beanpole Springbok lock Andries Bekker in superb form and ruling the lineout along with elsewhere on the field, Blackadder will have to think carefully about his tactics this weekend, and with two of his linchpins missing. APNZ